Shimano Dura Ace 9000 Rear Derailleur

Shimano Dura Ace 9000 Rear Derailleur

As Shimano's premier road group, anything stamped with the Dura Ace logo represents the company's highest level of engineering -- designed, tested and manufactured in Japan using the latest technology and most advanced production techniques. Tested and ridden by the pros, 9000 series components are a common sight in the peloton and thanks to Shimano's never-ending quest for perfection, feature significant improvements from the older 7900 series. Aside from the noticeable differences in appearance from the previous generation, the new 9000 rear derailleur is specifically designed for 11-speeds and at 162 grams is roughly four grams lighter. When coupled with Shimano's new polymer coated cables, this derailleur requires nearly 50 percent less force to shift, a significant factor when you consider how many times a rider changes gears over the course of a ride. And while most of the company's latest marketing material focuses on the advantages of running an electronic drivetrain, Dura Ace 9000 is still the creme de la creme of mechanical groups. It's no wonder why it's still a huge favorite among the peloton; the new Dura Ace 9000 Rear Derailleur is quite possibly one of the finest ever made.